21872128

素因数分解:

$2^9\times {\mathrm{42719}}^1$

素因数の和:42737

約数の個数: 20

約数和(自身を含む): 43702560

約数和(自身を除く): 21830432

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 42719, 85438, 170876, 341752, 683504, 1367008, 2734016, 5468032, 10936064, 21872128]

約数ペア:

[(1, 21872128), (2, 10936064), (4, 5468032), (8, 2734016), (16, 1367008), (32, 683504), (64, 341752), (128, 170876), (256, 85438), (512, 42719)]